24 Nov 2025, 03:33 [ UTC - 5; DST ]
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Post subject: Re: Single engine pressurized above FL 250 Posted: 23 Jan 2016, 11:45 |
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Joined: 01/31/10 Posts: 13631 Post Likes: +7766 Company: 320 Fam
Aircraft: 58TC
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Username Protected wrote: How about the Beech Starship for a billion lost. Eclipse $6B lost. Mike C.
And yet, it is designed the way you would do it.
_________________ Views are my own and don’t represent employers or clients My 58TC https://tinyurl.com/mry9f8f6
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Post subject: Re: Single engine pressurized above FL 250 Posted: 23 Jan 2016, 11:50 |
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Joined: 07/11/11 Posts: 2416 Post Likes: +2774 Location: Woodlands TX
Aircraft: C525 D1K Waco PT17
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Username Protected wrote: It's thread creep, but the Tamarack C525 winglets just got EASA approved and are claiming 900lbs per hour for the first hour and 600lbs per hour thereafter.... That 600pph is at FL410. Compare that to stock numbers. A bit of a savings but not monumental for the cost of the winglets.
But an MTOW and ZFW increase of 400 lbs is significant, especially combined with other performance improvements like hot/high performance. The jury is still out as to what the performance gains will be with the winglets as Tamarack has focused on certification rather than marketing, so little is known up to now regarding performance benefits.
It is a subjective question whether the winglets will be "worth it" or not, and it will depend on each operators needs. The claim so far is:
Certification of Tamarack Aerospace’s Active Winglet technology culminates a three year effort that included more than 300 hours of test flights on its testbed aircraft N86LA, a ‘straight CJ’ C525-0012, built in 1992. During that time the jet has consistently flown at Max Takeoff Weight to its ceiling limit of FL410 in around 30 minutes or less. At max continuous thrust the block fuel burn on these flights averaged an amazing 96 gallons per hour.
The ATLAS™ Active Winglet system also increases aircraft stability and smooths out the bumps of inflight turbulence.
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Post subject: Re: Single engine pressurized above FL 250 Posted: 23 Jan 2016, 11:51 |
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Joined: 11/09/13 Posts: 1910 Post Likes: +927 Location: KCMA
Aircraft: Aero Commander 980
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Username Protected wrote: It isn't a flawed basic concept. A light weight twin jet with traditional planform is right. That serves as an example of what Cirrus COULD have built and how it COULD have performed.
If the SF50 were so basically flawed they wouldn't bother building it. There's no way I would ever ever do what you're proposing Cirrus is doing. I don't know anyone who would either. We shall see what end product does. Til then it's silly to keep speculating. That video posted already shows the SF50 having much better performance than what has been suggested in this thread. We shall see.
The performance in the video revealed it to be a weaker performer than a TP and that was a sales video.
What is there to like?
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Post subject: Re: Single engine pressurized above FL 250 Posted: 23 Jan 2016, 11:52 |
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Joined: 01/29/08 Posts: 26338 Post Likes: +13085 Location: Walterboro, SC. KRBW
Aircraft: PC12NG
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Username Protected wrote: The performance in the video revealed it to be a weaker performer than a TP and that was a sales video.
What is there to like? Weaker than what turboprop? A TBM 900 is a $4MM airplane. A new PC12NG is $5MM. Apples and oranges.
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Post subject: Re: Single engine pressurized above FL 250 Posted: 23 Jan 2016, 12:40 |
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Joined: 12/03/14 Posts: 20768 Post Likes: +26274 Company: Ciholas, Inc Location: KEHR
Aircraft: C560V
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Username Protected wrote: Quote: Eclipse $6B lost. And yet, it is designed the way you would do it. Nope, they wasted the money on stuff I wouldn't have, avionics being a major part of that. As I said, their execution STUNK. The Eclipse serves as an example of what the performance can be with two engine at 6000 lbs weight. Mike C.
_________________ Email mikec (at) ciholas.com
Last edited on 23 Jan 2016, 12:42, edited 1 time in total.
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Post subject: Re: Single engine pressurized above FL 250 Posted: 23 Jan 2016, 12:41 |
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Joined: 11/09/13 Posts: 1910 Post Likes: +927 Location: KCMA
Aircraft: Aero Commander 980
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Epic
It goes faster, farther, carries more, is bigger and does it all on less gas.
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Post subject: Re: Single engine pressurized above FL 250 Posted: 23 Jan 2016, 12:41 |
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Joined: 12/03/14 Posts: 20768 Post Likes: +26274 Company: Ciholas, Inc Location: KEHR
Aircraft: C560V
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Username Protected wrote: That video posted already shows the SF50 having much better performance than what has been suggested in this thread. Who suggested the SF50 couldn't do what the video showed? I have not seen anyone say that. I think you are making this up to falsely establish some sort of achievement on their part. Mike C.
_________________ Email mikec (at) ciholas.com
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Post subject: Re: Single engine pressurized above FL 250 Posted: 23 Jan 2016, 14:26 |
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Joined: 02/26/11 Posts: 483 Post Likes: +289 Location: Fort Worth, TX
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Username Protected wrote: Epic
It goes faster, farther, carries more, is bigger and does it all on less gas. This. If it gets certified and hits the number projected, it will be an incredible machine.
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Post subject: Re: Single engine pressurized above FL 250 Posted: 23 Jan 2016, 14:26 |
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Joined: 12/18/12 Posts: 833 Post Likes: +421 Location: Europe
Aircraft: Aerostar 600A
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Quote: Cirrus promised that more details would be made available shortly, but has previously descibed their proposed offering as "slowest, lowest, and cheapest jet available."
That says it all. The only question is will anybody buy the Slowest, lowest and cheapest, and most probably the shortest range jet on the market ? @ +$2.2M ??
_________________ A&P/IA P35 Aerostar 600A
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Post subject: Re: Single engine pressurized above FL 250 Posted: 23 Jan 2016, 14:35 |
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Joined: 01/31/10 Posts: 13631 Post Likes: +7766 Company: 320 Fam
Aircraft: 58TC
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Username Protected wrote: Epic
It goes faster, farther, carries more, is bigger and does it all on less gas. Not a jet. No chute. No major brand stability and support network. Needs a big hangar.
_________________ Views are my own and don’t represent employers or clients My 58TC https://tinyurl.com/mry9f8f6
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Post subject: Re: Single engine pressurized above FL 250 Posted: 23 Jan 2016, 15:05 |
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Joined: 11/09/13 Posts: 1910 Post Likes: +927 Location: KCMA
Aircraft: Aero Commander 980
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Username Protected wrote: Epic
It goes faster, farther, carries more, is bigger and does it all on less gas. Not a jet. No chute. No major brand stability and support network. Needs a big hangar.
Not a jet at FL280 is a advantage
No chute = No weight penalty
Brand stability might get a little shaky if they keep creating SF50s
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Post subject: Re: Single engine pressurized above FL 250 Posted: 23 Jan 2016, 15:36 |
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Joined: 12/18/12 Posts: 833 Post Likes: +421 Location: Europe
Aircraft: Aerostar 600A
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Username Protected wrote: There are only two ways to product success:
1. Making a better product than anyone else. 2. Making a product that's more convenient or simpler to use.
The SF50 skeptics are hung up on point 1. But a product can be just as successful following point 2. In fact, people will often chose a product that's worse than the competition, if it's more convenient or saves them hassle. So the saying you you need to build a better mouse trap isn't true. You just need to build one that's more convenient.
History is absolutely full of such examples. Never underestimate the laziness of mankind. Well, you really can't fault Cirrus marketing with "Slowest, lowest and cheapest" So you think there's a bunch of lazy people around with over $2M in their pocket for a Under-performing jet ? Cirrus: Hey, we told ya from the beginning it was gunna be a dog 
_________________ A&P/IA P35 Aerostar 600A
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